Roller-skate



' (No-Model.)

L. M. RICHARDSON.

ROLLER SKATE.

No. 308,990. v Patented Dec. 9, 1884;

llllm mwnl llniirnn dramas Parent Crimes.

LEVANT M. RICHARDSON, OF CHICAGO, ILLINOIS.

ROLLER-=SKATE.

ESPECIFICATTON forming part of Iletters Patent No. 308,990, datedDecember 9, 1884.

Application filed August 6, 1884. (No model.)

To all whom, it may concern.-

Be it known that I, Lnvan'r M. RICHARD- SON, a citizen of the UnitedStates of America, residing at Chicago, in the county of Cook and Stateof Illinois, haveinvented certain new and useful Improvements inRoller-Skates, of which the following is a specification, referencebeing bad therein to the accompanying drawings.

My invention relates to improvements in roller-skates.

The object of the invention is to improve the bearings for the rollerswith which such skates are provided; and to that end it consists inproviding one or more series of balls situated within the rollers,between them and the axles, and held in place in any suitable manner.

Reference will be made to the accompany ing drawings, in which Figure 1is a longitudinal sectional view of a skate, and Fig. 2 a cross-sectionthrough one roller thereof.

Like letters refer to likeparts in each view.

A represents the foot-rest or body of the skate; B B, the heel and toestraps, respectively; and C,the hangers, secured upon the lower face ofthe footrest A and supporting-axles D. Upon each axle 1) one or tworollers, E, are loosely mounted so as to revolve thereon, said openingpreferably larger at each end than at the center, whereby theinwardly-projecting flange or ring a is formed. Into each roller abushing, b, is inserted, the length thereof being slightly less than thewidth of the roller, in order that a small space may be left between thesides of the roller andv each end of the bushing. This bushing is ofsuch a size that it will fit snugly within the roller, its outer surfacecontacting with the flange or ring a, before referred to. At or aboutthe center of bushing b, and upon the interior thereof, there is formeda ring or flange, 0, provided with a central opening, through which theaxle is adapted to pass and by which the bushing is centrally divided.In each chamber thus formed in the bushing I place a series of smallballs, (I, made of any suitable material and of are provided each with acentral opening to fit such plates upon the axle, and each is providedwith a flange, f, which is screw-threaded, as

shown in Fig. 2, said flange adapted to engage with a thread formed uponeach end of hash ing b, and being of such a size as to adapt it to fitsnugly in the space formed by the central flange or ring, a, of theroller, whereby -when the plates are screwed to their position theirouter faces will be flush with the sides of the roller.

By the arrangement of the parts as described and shown a perfectball-bearing is provided for each roller, and one which will provedurable and which in appearance is neat.

hat I claim is l. The combination, in a roller skate and with the axlesthereof, of rollers provided in their bores with a ring orflange,a'bushing situated within each roller, balls situated in the bushing,and plates for holding the balls in position, said plates adapted,whenin position, to be flush with the rollers, as set forth.

2. In a skate, the combination, with rollers E and axles D, ofcentrally-divided bushings b, screw-threaded at each end, balls (I,situated therein, and plates 6, for holding such balls in position, saidplates being provided each with a. screw-threaded flange, f, as and forthe purpose set forth.

3. In a skate,the combination, with aXles D and rollers-E, provided withfllange or ring a, of centrally-divided bushings 5, balls cl,situatedtherein, and plates 6, for holding such balls in position, theparts so arranged that LEVANT M. RICHARDSON.

lVitnesses:

M. J. GLiienrr, A. F. SMITH.

